Vacuum measuring
controlling
Today, the total range of vacuum pressure accessible to measurement extends from atmospheric pressure (about 1000 mbar (750 Torr)) down to 10-12 mbar/ 0.75•10-12 Torr, i.e. it extends over 15 powers of ten. The instruments used for measuring the pressure within this wide range are called vacuum gauges. For physical reasons it is not possible to create a single vacuum sensor through which it might be possible to perform quantitative measurements within the entire pressure range. Therefore, a variety of different vacuum gauges are available, each with their own characteristic measurement range which commonly extends over several powers of ten.
Calibration Service
If the requirements concerning reproducibility and comparability of measurement readings are mandatory or required, Leybold Vacuum offers an impartial calibration service for gauges and sensors of any make. Depending on the customers demands a DAkkS (German Calibration Service) or factory calibration is issued and certified.